In this paper the toughening mechanism of PVC/CPE filled with nanoscale SiO 2 and the effects of nanoscale SiO 2 and common SiO 2 contents on properties of PVC/CPE were studied.The experimental results showed PVC/CPE/...In this paper the toughening mechanism of PVC/CPE filled with nanoscale SiO 2 and the effects of nanoscale SiO 2 and common SiO 2 contents on properties of PVC/CPE were studied.The experimental results showed PVC/CPE/SiO 2 had excollent notched impact strength and tensile strength when nano SiO 2 content was 6 per cent to 12 per cent.Local SiO 2 had no obvious toughening effect on PVC/CPE,but made the tensile strength and elongation at break of PVC/CPE decreased obviously.展开更多
研究钛酸丁酯水解沉淀法制备纳米 Ti O2 粒子的方法 ,考察水解反应介质组成、酸碱性、回流与共沸处理 ,添加聚合物等反应与处理条件对所制得 Ti O2 粒子粒径、形貌的影响 .发现钛酸丁酯在碱性或中性条件下 ,醇水之比较小的含少量聚乙二...研究钛酸丁酯水解沉淀法制备纳米 Ti O2 粒子的方法 ,考察水解反应介质组成、酸碱性、回流与共沸处理 ,添加聚合物等反应与处理条件对所制得 Ti O2 粒子粒径、形貌的影响 .发现钛酸丁酯在碱性或中性条件下 ,醇水之比较小的含少量聚乙二醇的介质中水解反应 ,低温短时间脱除有机溶剂并经低温短时煅烧所制得的纳米 Ti O2 粒子是由数个锐钛晶型晶粒构成的纳米 Ti O2 粒子 ,粒子粒径小 。展开更多
文摘In this paper the toughening mechanism of PVC/CPE filled with nanoscale SiO 2 and the effects of nanoscale SiO 2 and common SiO 2 contents on properties of PVC/CPE were studied.The experimental results showed PVC/CPE/SiO 2 had excollent notched impact strength and tensile strength when nano SiO 2 content was 6 per cent to 12 per cent.Local SiO 2 had no obvious toughening effect on PVC/CPE,but made the tensile strength and elongation at break of PVC/CPE decreased obviously.
文摘研究钛酸丁酯水解沉淀法制备纳米 Ti O2 粒子的方法 ,考察水解反应介质组成、酸碱性、回流与共沸处理 ,添加聚合物等反应与处理条件对所制得 Ti O2 粒子粒径、形貌的影响 .发现钛酸丁酯在碱性或中性条件下 ,醇水之比较小的含少量聚乙二醇的介质中水解反应 ,低温短时间脱除有机溶剂并经低温短时煅烧所制得的纳米 Ti O2 粒子是由数个锐钛晶型晶粒构成的纳米 Ti O2 粒子 ,粒子粒径小 。
